CN109271712A - A kind of Moisture Method during segmented is dry - Google Patents
A kind of Moisture Method during segmented is dry Download PDFInfo
- Publication number
- CN109271712A CN109271712A CN201811115984.2A CN201811115984A CN109271712A CN 109271712 A CN109271712 A CN 109271712A CN 201811115984 A CN201811115984 A CN 201811115984A CN 109271712 A CN109271712 A CN 109271712A
- Authority
- CN
- China
- Prior art keywords
- drying
- dry
- stage
- moisture
- constant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000001035 drying Methods 0.000 claims abstract description 416
- 239000000463 material Substances 0.000 claims abstract description 62
- 238000006467 substitution reaction Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000004458 analytical method Methods 0.000 abstract description 6
- 238000013461 design Methods 0.000 abstract description 6
- 238000005457 optimization Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 abstract description 2
- 206010013786 Dry skin Diseases 0.000 abstract 1
- 240000005373 Panax quinquefolius Species 0.000 description 15
- 235000003140 Panax quinquefolius Nutrition 0.000 description 15
- 238000004457 water analysis Methods 0.000 description 11
- 238000004364 calculation method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000011218 segmentation Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F30/00—Computer-aided design [CAD]
- G06F30/20—Design optimisation, verification or simulation
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Computer Hardware Design (AREA)
- Evolutionary Computation (AREA)
- Geometry (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses the Moisture Methods in a kind of drying of segmented, including material to be dried is carried out under the conditions of different dryings constant temperature constant speed type it is dry when drying time and its material moisture ratio, it is fitted calculating with multiple drying kinetic models, so that it is determined that optimum drying kinetic model out；Drying constant in the different drying conditions and the optimum drying kinetic model is fitted calculating, so that it is determined that the functional equation between the drying condition and the drying constant out；Drying time and the drying condition for selecting drying stage number and each drying stage, then substitute into the optimum drying kinetic model and the drying constant equation, to obtain moisture situation of change of the material to be dried in the segmented is dry.The embodiment of the present invention is able to satisfy the analysis detection demand of complicated moisture situation of change in segmented drying process, is conducive to Design and optimization segmented drying process, improves the dry product quality of segmented and production efficiency.
Description
Technical field
The present invention relates to the Moisture Methods in technical field of drying more particularly to a kind of drying of segmented.
Background technique
Dry technology is one of the agriculture product processing technology being most widely used, and needs to consume a large amount of thermal energy.Common hot wind
Dry includes that constant temperature constant speed type is dry and segmented is dry.Segmented drying is the dehydration characteristic according to dried material, in due course
Change drying temperature or wind speed, this can reduce energy consumption for drying, shorten drying time, improves drying quality, therefore segmented is dry
It is dry by extensive concern and application.
The dry technological design of segmented and optimization need to accurately hold the moisture situation of change in drying process, according to quilt
Dried strip of the moisture than determining or modifying the phase change point and each stage in segmented drying process inside dried material
Part, but in the prior art without the Moisture Method suitable for segmented drying.
Summary of the invention
For above-mentioned shortcoming in the prior art, the present invention provides the water analysis sides in a kind of drying of segmented
Method can satisfy the analysis detection demand of complicated moisture situation of change in segmented drying process, be conducive to Design and optimization segmentation
Formula drying process improves the dry product quality of segmented and production efficiency.
The purpose of the present invention is what is be achieved through the following technical solutions:
A kind of Moisture Method during segmented is dry, comprising the following steps:
Step A, several groups of difference drying conditions are selected, and material to be dried is subjected to constant temperature constant speed type with every group of drying condition
The material moisture ratio at the end of drying time and each drying time when dry, is fitted meter with multiple drying kinetic models
It calculates, thus optimum drying kinetic model of the model for selecting the goodness of fit best as the material to be dried；
Step B, the drying condition according to selected in step A determines drying condition range, and according to described best dry
Dry kinetic model carries out drying constant in drying condition selected in step A and the optimum drying kinetic model
The Fitting Calculation, so that it is determined that the functional equation between the drying condition and the drying constant out；Using the functional equation as
Drying constant equation suitable for the drying condition range；
Step C, the drying time of selection segmented dry drying stage number and each drying stage, and done from described
Then the drying condition of each drying stage of selection in dry condition and range substitutes into the optimum drying kinetic model and described dry
Dry constant equation is calculated, to obtain moisture situation of change of the material to be dried in the segmented drying process.
Preferably, the drying condition according to selected in step A determines that drying condition range includes: selected by the step A
The maximum value and minimum value of every kind of drying condition are determined in the drying condition selected, so that drying condition range be determined are as follows: every
Minimum value of the value not less than such drying condition and the maximum value no more than such drying condition of kind drying condition.
Preferably, the substitution optimum drying kinetic model and the drying constant equation, which calculate, includes:
For first drying stage, the initial water of material to be dried is allocated as the starting moisture of first drying stage；By first
The drying condition of a drying stage substitutes into the drying constant equation and is calculated, to obtain best in first drying stage
The drying constant of drying kinetic model；It then will be in the drying time and first drying stage of first drying stage
The drying constant of optimum drying kinetic model substitutes into the optimum drying kinetic model and is calculated, to obtain first
Material moisture ratio at the end of drying stage.In addition to first drying stage, for remaining each drying stage, according to previous
Starting moisture of the material moisture than determining the drying stage at the end of a drying stage, and by the dried strip of the drying stage
Part substitutes into the drying constant equation and is calculated, to show that the drying of optimum drying kinetic model in the drying stage is normal
Number；Then by the drying constant generation of optimum drying kinetic model in the drying time of the drying stage and the described drying stage
Enter the optimum drying kinetic model to be calculated, thus the material moisture ratio at the end of obtaining the drying stage.
Preferably, the material moisture according at the end of previous drying stage is than determining rising for the drying stage
Beginning moisture includes: using the material moisture at the end of previous drying stage than the starting moisture as the drying stage.
Preferably, the drying kinetic model includes Henderson and Pabis model, Lewis model, Page
Model, Two-terms model, Modified Page model, Wang and Singh model.
Preferably, the drying condition includes drying temperature and dry gas stream wind speed, can also include that dry environment is opposite
At least one of in humidity, material cross-sectional sizes and material thickness of thin layer.
As seen from the above technical solution provided by the invention, the moisture point in segmented drying provided by the present invention
The dry data of constant temperature constant speed type that analysis method first passes through material to be dried calculate the highest optimum drying dynamics of the goodness of fit
Then model fits the functional equation in the optimum drying kinetic model between drying constant and drying condition, then benefit
Feelings are changed to the moisture of each drying stage in segmented drying process with the functional equation and the optimum drying kinetic model
Condition is analyzed, and based on segmented drying stage replace when biodiversity conservation theorem determine each drying stage moisture rise
Initial point so as to obtain the material moisture ratio at the end of each drying stage, and then can be derived that entire segmented is dried
The water analysis figure of journey, is accurately judged to the material moisture of any time in segmented drying process, and it is dry that this satisfies segmenteds
The water analysis demand of dry middle complicated moisture situation of change, is advantageous to Design and optimization segmented drying process, improves segmentation
The dry product quality of formula and production efficiency.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, required use in being described below to embodiment
Attached drawing be briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for this
For the those of ordinary skill in field, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the dry water analysis figure of segmented provided by the embodiment of the present invention 1.
Specific embodiment
With reference to the attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
The embodiment of invention, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, belongs to protection scope of the present invention.
The Moisture Method in segmented provided by the present invention drying is described in detail below.The present invention is implemented
The content being not described in detail in example belongs to the prior art well known to professional and technical personnel in the field.
A kind of Moisture Method during segmented is dry, may comprise steps of:
Step A, several groups of difference drying conditions are selected, and material to be dried is subjected to constant temperature constant speed type with every group of drying condition
The material moisture ratio at the end of drying time and each drying time when dry, is fitted meter with multiple drying kinetic models
It calculates, thus optimum drying kinetic model of the model for selecting the goodness of fit best as the material to be dried.
Step B, the drying condition according to selected in step A determines drying condition range, and according to described best dry
Dry kinetic model carries out drying constant in drying condition selected in step A and the optimum drying kinetic model
The Fitting Calculation, so that it is determined that the functional equation between the drying condition and the drying constant out；Using the functional equation as
Drying constant equation suitable for the drying condition range.
Step C, the drying time of selection segmented dry drying stage number and each drying stage, and done from described
Then the drying condition of each drying stage of selection in dry condition and range substitutes into the optimum drying kinetic model and described dry
Dry constant equation is calculated, to obtain moisture situation of change of the material to be dried in the segmented drying process.
Specifically, the Moisture Method in segmented drying may include following embodiments:
(1) drying condition described in includes drying temperature and dry gas stream wind speed, can also include that dry environment is relatively wet
At least one of in degree, material cross-sectional sizes, material thickness of thin layer.
(2) of the present invention " material to be dried with every group of drying condition carry out constant temperature constant speed type it is dry when drying when
Between and each drying time at the end of material moisture ratio " drying condition that refers to corresponding every group selection, in material to be dried with this
Drying condition choose when constant temperature constant speed type is dry material moisture at the end of at least one set of drying time and the drying time
Than；Such as: using American Ginseng as material to be dried, the different drying condition of selection following groups: first group of drying condition is " dry
Dry temperature is 35 DEG C, dry gas stream wind speed is 1.5m/s ", and second group of drying condition is that " drying temperature is 35 DEG C, dry gas stream wind
Speed is 2.5m/s ", and third group drying condition is " drying temperature is 45 DEG C, dry gas stream wind speed is 1.5m/s ", the 4th group of drying
Condition is " drying temperature is 45 DEG C, dry gas stream wind speed is 2m/s "；Perseverance is carried out with first group of drying condition in material to be dried
When warm constant speed type is dry, American Ginseng moisture ratio is 0.00454 after dry 70h；Material to be dried with second group of drying condition into
When row constant temperature constant speed type is dry, American Ginseng moisture ratio is 0.00417 after dry 70h；In material to be dried with third group dried strip
When part carries out the drying of constant temperature constant speed type, American Ginseng moisture ratio is 0.00428 after dry 70h；Material to be dried with the 4th group into
When row constant temperature constant speed type is dry, American Ginseng moisture ratio is 0 after dry 70h.In practical applications, material to be dried organizes drying with certain
When condition carries out the drying of constant temperature constant speed type, the material moisture ratio at the end of selected drying time can be examined using the prior art
It surveys.
(3) drying kinetic model can using Henderson and Pabis model in the prior art,
The semiempiricals such as Lewis model, Page model, Two-terms model, Modified Page model, Wang and Singh model
The model equation of model, these models is as shown in table 1 below:
Table 1
Note: the MR in table 1 indicates that moisture ratio, t indicate drying time, a, b, n, k, k0、k1It is drying constant.
(4) the Fitting Calculation described in can use all kinds of linear fits in the prior art or nonlinear fitting.
(5) drying condition according to selected in step A described in determines that drying condition range includes: from step A institute
The maximum value and minimum value of every kind of drying condition are determined in the different drying conditions of selection, so that drying condition range be determined
Are as follows: minimum value of the value of every kind of drying condition not less than such drying condition and the maximum value no more than such drying condition.
Such as: in above-mentioned American Ginseng example, selected following groups drying condition: first group of drying condition be " drying temperature is 35 DEG C,
Dry gas stream wind speed is 1.5m/s ", second group of drying condition is " drying temperature is 35 DEG C, dry gas stream wind speed is 2m/s ",
It is " drying temperature that three groups of drying conditions, which are " drying temperature is 35 DEG C, dry gas stream wind speed is 2.5m/s ", the 4th group of drying condition,
For 45 DEG C, dry gas stream wind speed be 1.5m/s ", wherein only two kinds of drying conditions of drying temperature and dry gas stream wind speed, and
The minimum value of drying temperature is 35 DEG C, the maximum value of drying temperature is 45 DEG C, and the minimum value of dry gas stream wind speed is 1.5m/s, does
The maximum value of pathogenic dryness stream wind speed is 2.5m/s, to should determine drying condition range are as follows: 35 DEG C≤drying temperature≤45 DEG C,
1.5m/s≤dry gas stream wind speed≤2.5m/s.
(6) the substitution optimum drying kinetic model and the drying constant equation described in calculate
1. for first drying stage, the start time point of first drying stage is zero, material to be dried it is initial
Starting moisture of the moisture as first drying stage；The drying condition of first drying stage is substituted into the drying constant side
Cheng Jinhang is calculated, to obtain the drying constant of optimum drying kinetic model in first drying stage；Then by first
The drying constant of optimum drying kinetic model substitutes into described best in the drying time of drying stage and first drying stage
Drying kinetic model is calculated, thus the material moisture ratio at the end of obtaining first drying stage.
2. in addition to first drying stage, for remaining each drying stage, at the end of previous drying stage
Start time point and starting moisture of the material moisture than determining the drying stage, and by the drying condition generation of the drying stage
Enter the drying constant equation to be calculated, to obtain the drying constant of optimum drying kinetic model in the drying stage；
It then will be described in the drying constant substitution of optimum drying kinetic model in the drying time of the drying stage and the drying stage
Optimum drying kinetic model is calculated, thus the material moisture ratio at the end of obtaining the drying stage.In practical applications,
Biodiversity conservation theorem when based on segmented drying stage alternating, can be by the material moisture at the end of previous drying stage
Than the starting moisture directly as the drying stage.
3. the material moisture at the end of each drying stage is than after calculating, so that it may show that entire segmented is dry
The water analysis figure of dry process realizes the water analysis in segmented drying.
Further, the Moisture Method in segmented drying provided by the present invention first passes through the perseverance of material to be dried
The dry data of warm constant speed type calculate the highest optimum drying kinetic model of the goodness of fit, then fit the optimum drying
Functional equation in kinetic model between drying constant and drying condition recycles the functional equation and the optimum drying dynamic
The moisture situation of change of each drying stage in Analysis on Mechanics Model segmented drying process, and replaced based on segmented drying stage
When biodiversity conservation theorem determine the moisture starting point of each drying stage, so as to the object at the end of each drying stage
Expect moisture ratio, and then obtain the water analysis figure of entire segmented drying process, realizes the water analysis in segmented drying.
To sum up, the embodiment of the present invention can satisfy the analysis inspection of complicated moisture situation of change in segmented drying process
Survey demand is conducive to Design and optimization segmented drying process, improves the dry product quality of segmented and production efficiency.
In order to more clearly from show technical solution provided by the present invention and generated technical effect, below with tool
The Moisture Method that body embodiment is provided for the embodiments of the invention in segmented drying is described in detail.
Embodiment 1
A kind of Moisture Method during segmented is dry, may comprise steps of:
Step A1, using American Ginseng as material to be dried, and (come from " lucky according to " Research on Fast Drying Technology of American Ginseng "
Woods university " Master's thesis in 2006, author Ji Qingxiao) in eight groups of American Ginseng constant temperature constant speed type drying experiment result datas,
By the material moisture ratio at the end of the drying time and each drying time under this eight groups of drying conditions, respectively with Henderson
And Pabis model, Lewis model, Page model, Two-terms model, Modified Page model, Wang and
This six semiempirical drying kinetic models of Singh model are fitted calculating, and the fitting result is as shown in the following table 2 and table 3:
Table 2
Table 3
Note: in table 2 and table 3, MR indicates that moisture ratio, t indicate drying time, R2Indicate the goodness of fit, a, b, n, k, k0,
K1 is drying constant.
The fitting result shown in table 2 and table 3: the goodness of fit of Modified Page model and Page model is most
It is high and identical；Another goodness of fit RSS value of the two models is compared on this basis, the results are shown in Table 4:
Table 4
As shown in Table 4: the RSS value of Modified Page model is smaller, i.e. the goodness of fit of Modified Page model
Preferably, thus by Modified Page model M R=exp [- (kt)n] optimum drying kinetic model as American Ginseng.
Step B1, the drying condition according to selected in step A1 determines drying condition range (drying condition range
It determines are as follows: 35 DEG C≤drying temperature≤55 DEG C, 1.5m/s≤dry gas stream wind speed≤2.5m/s), and according to the optimum drying
Kinetic model MR=exp [- (kt)n], by drying condition selected in step A1 and the optimum drying kinetic model
Middle drying constant is fitted calculating, and fitting formula (formula 1 and formula 2) is as follows:
K=x1+x2T+x3V (formula 1)
N=y1+y2T+y3V (formula 2)
In above-mentioned formula 1 and formula 2, k, n are optimum drying kinetic model MR=exp [- (kt)n] drying it is normal
Number, T indicate that drying temperature, V indicate dry gas stream wind speed, x1、x2、x3、y1、y2、y3It is unknown number；May thereby determine that out institute
State the functional equation between drying condition and the drying constant, as the following formula 3 and formula 4 shown in:
K=-0.081+0.004T+0.015V (formula 3)
N=3.163-0.033T-0.264V (formula 4)
In above-mentioned formula 3 and formula 4, k, n are optimum drying kinetic model MR=exp [- (kt)n] drying it is normal
Number, T indicate that drying temperature, V indicate dry gas stream wind speed；The two functional equations (i.e. formula 3 and formula 4) are used as and are suitable for
" 35 DEG C≤drying temperature≤55 DEG C, the drying constant of this drying condition range of 1.5m/s≤dry gas stream wind speed≤2.5m/s "
Equation.
Step C1, the dry drying stage number of American Ginseng segmented is set as 2 sections, the drying time of first drying stage
1.5 hours, the drying condition of first drying stage be " drying temperature be 40 DEG C, dry gas stream wind speed be 2m/s ", second
The drying time of a drying stage is 7.5 hours, and the drying condition of second drying stage is that " drying temperature is 55 DEG C, dry
Air-flow wind speed is 1m/s ".
Step D1, the start time point of first drying stage is zero, by 1.0% conduct of initial moisture of material to be dried
The starting moisture of first drying stage；By the drying condition of first drying stage, (i.e. " drying temperature is 40 DEG C, dry gas
Stream wind speed substitutes into the drying constant equation (i.e. formula 3 and formula 4) for 2m/s ") and is calculated, to obtain first drying
The drying constant of optimum drying kinetic model in stage；By the drying time (i.e. 1.5 hours) of first drying stage and institute
The drying constant for stating optimum drying kinetic model in first drying stage substitutes into optimum drying kinetic model (the i.e. MR
=exp [- (kt)n]) calculated, so that the material moisture ratio at the end of obtaining first drying stage is 0.916.
Step E1, biodiversity conservation theorem when based on segmented drying stage alternating, can be by first drying stage
At the end of material moisture than the starting moisture directly as second drying stage.By the drying condition of second drying stage
(i.e. " drying temperature is 55 DEG C, and dry gas stream wind speed is 1m/s ") substitute into the drying constant equation (i.e. formula 3 and formula 4) into
Row calculates, to obtain the drying constant of optimum drying kinetic model in second drying stage；By second drying stage
Drying time (i.e. 7.5 hours) and second drying stage in optimum drying kinetic model drying constant substitute into institute
State optimum drying kinetic model (i.e. MR=exp [- (kt)n]) calculated, thus at the end of obtaining second drying stage
Material moisture ratio be 0.351.
Specifically, according to step C1, step D1 and step E1 it can be concluded that the dry water analysis of segmented as shown in Figure 1
Figure.As shown in Figure 1, the segmented drying process of American Ginseng is divided into two drying stages, i.e. curve 1 and curve 2.Curve 1 is
Drying kinetic model curve in segmented drying process under drying condition selected by first drying stage, oa sections of solid line
It is first drying stage actual drying process, dry used time △ toa, dotted portion is to have neither part nor lot in process.It is dry based on segmented
Biodiversity conservation theorem when stage replaces, for first drying stage into second drying stage transition process, second dry
The starting point (i.e. b point) in dry stage with the moisture of first drying stage terminating point (i.e. a point) than identical, therefore the b on curve 2
Point is identical as the corresponding longitudinal axis positions of a point on curve 1.Curve 2 is in segmented drying process selected by second drying stage
The drying kinetic model curve under drying condition is selected, bc sections of solid line are second drying stage actual drying processes, dry
Used time △ tbc, dotted portion is to have neither part nor lot in process.It is the first rank that the used time is all dried in the segmented drying process of American Ginseng
The dry used time △ t of sectionoaWith the dry used time △ t of second stagebcThe sum of.It can be accurate according to the dry water analysis figure of the segmented
The American Ginseng moisture for judging any time in the segmented drying process, this satisfies moisture variations complicated in segmented drying
The water analysis demand of situation.
Further, in the embodiment of the present invention 1 in implementation process, the dry drying stage number of American Ginseng segmented can be with
It is divided into more segmentations according to demand, drying time and the drying condition of each drying stage only need to be first determined, according still further to the present invention
Above content in addition to first drying stage each drying stage repeat above step E1 process.
To sum up, the embodiment of the present invention can satisfy the analysis inspection of complicated moisture situation of change in segmented drying process
Survey demand is conducive to Design and optimization segmented drying process, improves the dry product quality of segmented and production efficiency.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Within the technical scope of the present disclosure, any changes or substitutions that can be easily thought of by anyone skilled in the art,
It should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of claims
Subject to enclosing.
Claims (7)
- The Moisture Method during 1. a kind of segmented is dry, which comprises the following steps:Step A, several groups of difference drying conditions are selected, and material to be dried is subjected to the drying of constant temperature constant speed type with every group of drying condition When drying time and each drying time at the end of material moisture ratio, be fitted calculating with multiple drying kinetic models, So that it is determined that going out the optimum drying kinetic model of the material to be dried；Step B, the drying condition according to selected in step A determines drying condition range, and dynamic according to the optimum drying Drying condition selected in step A and drying constant in the optimum drying kinetic model are fitted by mechanical model It calculates, so that it is determined that the functional equation between the drying condition and the drying constant out；Using the functional equation as applicable In the drying constant equation of the drying condition range；Step C, the drying time of selection segmented dry drying stage number and each drying stage, and from the dried strip The drying condition that each drying stage is selected within the scope of part, then substitutes into the optimum drying kinetic model and the drying is normal Number equation is calculated, to obtain moisture situation of change of the material to be dried in the segmented drying process.
- The Moisture Method during 2. segmented according to claim 1 is dry, which is characterized in that described according to step Drying condition selected in A determines that drying condition range includes: to determine every kind from the selected drying condition of step A The maximum value and minimum value of drying condition, so that drying condition range be determined are as follows: the value of every kind of drying condition is not less than this The minimum value of kind drying condition and the maximum value for being not more than such drying condition.
- The Moisture Method during 3. segmented according to claims 1 and 2 is dry, which is characterized in that the substitution The optimum drying kinetic model and the drying constant equation calculateFor first drying stage, the initial water of material to be dried is allocated as the starting moisture of first drying stage；It will The drying condition of first drying stage substitutes into the drying constant equation and is calculated, to obtain in first drying stage The drying constant of optimum drying kinetic model；Then by the drying time of first drying stage and first dry rank The drying constant of optimum drying kinetic model substitutes into the optimum drying kinetic model and is calculated in section, to obtain the Material moisture ratio at the end of one drying stage；In addition to first drying stage, for remaining each drying stage, according to the material at the end of previous drying stage Starting moisture of the moisture than determining the drying stage, and the drying condition of the drying stage is substituted into the drying constant equation It is calculated, to obtain the drying constant of optimum drying kinetic model in the drying stage；Then by the drying stage The drying constant of optimum drying kinetic model substitutes into the optimum drying dynamics in drying time and the described drying stage Model is calculated, thus the material moisture ratio at the end of obtaining the drying stage.
- The Moisture Method during 4. segmented according to claims 1 and 2 is dry, which is characterized in that the basis Material moisture at the end of previous drying stage includes: with previous dry rank than the starting moisture for determining the drying stage Material moisture at the end of section is than the starting moisture as the drying stage.
- The Moisture Method during 5. segmented according to claims 1 and 2 is dry, which is characterized in that the drying Kinetic model include Henderson and Pabis model, Lewis model, Page model, Two-terms model, Modified Page model, Wang and Singh model.
- The Moisture Method during 6. segmented according to claims 1 and 2 is dry, which is characterized in that the dried strip Part includes drying temperature and dry gas stream wind speed.
- The Moisture Method during 7. segmented according to claim 6 is dry, which is characterized in that the drying condition is also Including at least one in dry environment relative humidity, material cross-sectional sizes and material thickness of thin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115984.2A CN109271712A (en) | 2018-09-25 | 2018-09-25 | A kind of Moisture Method during segmented is dry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811115984.2A CN109271712A (en) | 2018-09-25 | 2018-09-25 | A kind of Moisture Method during segmented is dry |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109271712A true CN109271712A (en) | 2019-01-25 |
Family
ID=65198011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811115984.2A Pending CN109271712A (en) | 2018-09-25 | 2018-09-25 | A kind of Moisture Method during segmented is dry |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109271712A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109783992A (en) * | 2019-03-07 | 2019-05-21 | 吉林农业大学 | A kind of method that the coupling of combined type extrusion homogenizes dehydration |
| CN112989554A (en) * | 2020-12-31 | 2021-06-18 | 北京石油化工学院 | Method, device and equipment for acquiring moisture content ratio of agricultural products based on different drying stages |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104013069A (en) * | 2014-05-22 | 2014-09-03 | 上海市农业科学院 | Processing method for controlling microbes of dehydrated spices through combining irradiation of high-energy electron beams with hot-air drying |
| JP2016061479A (en) * | 2014-09-17 | 2016-04-25 | 井関農機株式会社 | Grain drier |
| CN106474072A (en) * | 2016-11-25 | 2017-03-08 | 成都天河中西医科技保育有限公司 | Radically reform the fluidized drying technique of particle |
-
2018
- 2018-09-25 CN CN201811115984.2A patent/CN109271712A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104013069A (en) * | 2014-05-22 | 2014-09-03 | 上海市农业科学院 | Processing method for controlling microbes of dehydrated spices through combining irradiation of high-energy electron beams with hot-air drying |
| JP2016061479A (en) * | 2014-09-17 | 2016-04-25 | 井関農機株式会社 | Grain drier |
| CN106474072A (en) * | 2016-11-25 | 2017-03-08 | 成都天河中西医科技保育有限公司 | Radically reform the fluidized drying technique of particle |
Non-Patent Citations (3)
| Title |
|---|
| 吴小华等: "西洋参分段式热风干燥动力学模型构建", 《农业工程学报》 * |
| 李琼等: "红枣片热风干燥动力学研究", 《食品工业》 * |
| 郑玲玲等: "MVR空心桨叶干燥污泥的特性及动力学", 《化工进展》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109783992A (en) * | 2019-03-07 | 2019-05-21 | 吉林农业大学 | A kind of method that the coupling of combined type extrusion homogenizes dehydration |
| CN112989554A (en) * | 2020-12-31 | 2021-06-18 | 北京石油化工学院 | Method, device and equipment for acquiring moisture content ratio of agricultural products based on different drying stages |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Li et al. | Computer vision online measurement of shiitake mushroom (Lentinus edodes) surface wrinkling and shrinkage during hot air drying with humidity control | |
| CN106096223B (en) | Five-hole probe data processing method | |
| CN109271712A (en) | A kind of Moisture Method during segmented is dry | |
| CN103926025B (en) | A kind of test unit for measuring coating unrelieved stress and method | |
| CN105352998B (en) | The independent element number of impulse eddy current thermal-induced imagery determines method | |
| CN107958267B (en) | Oil product property prediction method based on spectral linear representation | |
| Martynenko | Porosity evaluation of ginseng roots from real-time imaging and mass measurements | |
| Shrivastava et al. | Experimental investigation on the comparison of fenugreek drying in an indirect solar dryer and under open sun | |
| Nadhari et al. | Drying kinetics of oil palm trunk waste in control atmosphere and open air convection drying | |
| Hosseinpour et al. | A novel image processing approach for in-line monitoring of visual texture during shrimp drying | |
| Zhao et al. | Drying kinetics of continuous and intermittent heat pump drying of green soybean seeds | |
| CN105029672B (en) | Precise characterization method for water at outlet of baked cut tobacco | |
| Singh et al. | Effect of viscoelastic relaxation on moisture transport in foods. Part II: Sorption and drying of soybeans | |
| Bai et al. | Crust formation and microstructural changes of gingko biloba seeds during drying | |
| CN103559417A (en) | Intelligent soft measurement method of slashing sizing percentage | |
| Cao et al. | A novel prediction model of frost growth on cold surface based on support vector machine | |
| CN112763225A (en) | Sensor error identification and elimination method based on Laplace feature mapping algorithm | |
| CN109916971B (en) | Rapid nondestructive testing method for fresh tobacco moisture based on capacitor | |
| CN109211311B (en) | Tobacco shred drying process quality consistency evaluation method based on different production line processing | |
| Saliba et al. | Evaluation of the infrared spectroscopy method for the quantification of nanolipe marker in feces of dairy cattle | |
| Olejnik et al. | Optimization of the beef drying process in a heat pump chamber dryer | |
| Ekphon et al. | Drying model, shrinkage and energy consumption evaluation of air dried sheet rubber drying system for small enterprise | |
| CN104616272A (en) | Iterative displacement field smoothing method applicable to digital image correlation | |
| CN106295703B (en) | Method for modeling and identifying time sequence | |
| Li et al. | Research on the Characteristics of Hot and Drying Kinetic and Shrinkage Kinetic of Redrying Tobacco Strips |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |
|
| RJ01 | Rejection of invention patent application after publication |